The National Lighting Committee of The Institute of Standards and Industrial Research of Iran has proposed for most places, such as residential, commercial and industrial places, amounts for minimum or minimum brightness intensity, and the following table refers to the standard announcement of some spaces. Minimum values are mandatory and the use of suggested values is recommended

The lower the brightness intensity, the warmer light is suggested to create a sense of calmness in spaces with a brightness intensity of 300 to 500 lux temperatures of 4000 Kelvin and at lighting intensities above 700 lux light color 5000 Kelvin is recommended.

 

Environment Brightness intensity (luxury) CRI Charitable coefficient Monotony Suggested color temperature
Elevators and staircases 150 50 28 0.40 Fits the space
Kitchen 300 80 22 0.60 White or sunny light color
Study Room 200 80 19 0.60 White Light Color
Bedroom 100 80 19 – Sunlight Color
Toilet 100 80 22 0.60 Cool white light color
General home lighting 75 80 19 0.40 Sunlight Color
Living room 100 80 19 0.60 White or sunny light color
Restaurant & Food Court 300 80 22 0.60 Cool white light color
Supermarket 500 80 22 0.40 Cool white light color
Office 300 80 19 0.60 Cool white light color
Accounting 300 80 19 0.60 Cool white light color
Conference Room 350 80 19 0.40 White or sunny light color
Waiting room and information 200 80 19 0.40 Fits the space
Study Desk 300 80 19 0.40 Cool white light color
Classroom 300 80 20 0.60 Cool white light color
Indoor Gymnasium 200 80 22 0.60 Cool white light color
General Lighting Hospital 150 80 19 0.40 Cool white light color
Examination Room 250 80 19 0.40 Cool white light color
Warehouse 100 40 25 0.40 Cool white light color
Building areas 25 40 25 – Fits the space
Parking 50 50 – 0.60 White or sunny light color
Green spaces 100 80 25 0.40 Tailored to the type of plant
Sidewalks 10 80 25 – Fits the space
Metro Hall 150 80 22 0.40 Cool white light color
Gas Station 250 80 22 0.40 Cool white light color

 

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